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Rho(D) Immune Globulin

Published: July 26, 2026Updated: August 24, 2026

Rho(D) Immune Globulin is a blood product containing antibodies against the Rh(D) antigen on red blood cells. It is primarily administered to Rh-negative pregnant women who have been exposed to Rh-positive fetal blood to prevent sensitization and hemolytic disease of the fetus and newborn. This medication may also be given after incompatible blood transfusions in Rh-negative patients.

Quick summary

A passive antibody preparation used to prevent Rh sensitization in Rh-negative individuals exposed to Rh-positive blood.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

ATC
J06BB01
RxNorm
35465
Generic
Rho(D) Immune Globulin
Class
atc-j06
Brands
RhoGAM, MICRhoGAM, WinRho, Rhophylac, HyperRHO
Availability
rx
Lactation
unknown
Routes
—
Forms
injection, prefilled syringe, solution
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Dosage and administration

adult (standard)tablet
Usual dose
500mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
250mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
400mg daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Rho(D) Immune Globulin is not typically associated with dose-dependent toxicity; overdose data is not well-established. The drug is administered in predefined doses based on clinical indication (postpartum, pregnancy prophylaxis, or after potential Rh-positive blood exposure).
Chronic overdose: Not applicable - Rho(D) Immune Globulin is administered as single or intermittent doses based on specific clinical scenarios rather than chronic therapy.
Immediate actions
Monitor for hypersensitivity reactions; supportive care. No specific antidote exists. Contact poison control for guidance.
Antidote
No specific antidote(Not applicable)
Poison Control: 1-800-222-1222

Special Populations

7 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

use only after miscarriage, ectopic pregnancy, or trauma

Key Recommendations

administer within 72 hours of potential fetomaternal hemorrhage

Monitor

monitor for signs of infection

Use with caution and monitor for adverse effects.

✓

pregnancy

second third trimester
safe
FDA Category
C
Dose Adjustment

standard dosing at 28 weeks gestation

Key Recommendations

standard dose of 300 mcg (3000 IU) IM at 28 weeks, repeat within 72 hours after delivery if infant is Rh-positive

Monitor

routine prenatal monitoring

✓

lactation

breastfeeding
safe
FDA Category
C
Dose Adjustment

no adjustment needed

Key Recommendations

compatible with breastfeeding

Monitor

none required

✓

geriatric

elderly
safe
FDA Category
C
Dose Adjustment

standard adult dosing

Key Recommendations

use standard dosing for postpartum prophylaxis or trauma

Monitor

standard monitoring

✓

pediatric_age

children
safe
FDA Category
C
Dose Adjustment

weight-based dosing for ITP

Key Recommendations

used for immune thrombocytopenic purpura at 250 mcg/kg for initial dose

Monitor

monitor platelet count and for hemolysis

⚠

renal_impairment

renal failure
caution
FDA Category
C
Dose Adjustment

use with caution in severe renal impairment

Key Recommendations

monitor renal function; avoid rapid IV infusion

Monitor

monitor renal function tests

Use with caution and monitor for adverse effects.

✓

hepatic_impairment

severe hepatic impairment
safe
FDA Category
C
Dose Adjustment

no specific adjustment required

Key Recommendations

standard dosing may be used

Monitor

standard monitoring

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1960s

General prescribing information

drug_classWHO
2023

Drug class

Value:Immune Globulin (Anti-D)

Drug class information

usageMedical guidelines
2023

Common uses

Value:Rh incompatibility prevention in pregnancy, Immune thrombocytopenic purpura (ITP) treatment

Common therapeutic uses

Prevention of Rh(D) isoimmunization in Rh-negative pregnant women exposed to Rh-positive fetal blood through childbirth, abortion, amniocentesis, chorionic villus sampling, or trauma; prevention of Rh(D) sensitization after incompatible blood transfusions to Rh-negative recipients.

Provides passive IgG anti-Rh(D) antibodies that bind to Rh-positive red blood cells, preventing the Rh-negative recipient's immune system from recognizing and mounting an active immune response (sensitization) against the Rh(D) antigen.

Administered by intramuscular or intravenous injection. Must be given within 72 hours of exposure for optimal effectiveness. Does not cross the placenta in significant amounts, making it safe during pregnancy. May interfere with routine newborn blood typing and direct Coombs testing. Patients should be monitored for hypersensitivity reactions.

Contraindications

Conditions and patient states where this medication should be avoided or used with caution.

Do not use (1)

ABSOLUTEhypersensitivity

Known allergy to this medication or its components

Use caution (1)

RELATIVEpregnancy

Consult healthcare provider for benefits vs risks assessment

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 24, 2026. · Read our editorial policy